12123313110131 has 16 divisors (see below), whose sum is σ = 12595938808320. Its totient is φ = 11662083211680.

The previous prime is 12123313110119. The next prime is 12123313110137. The reversal of 12123313110131 is 13101131332121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123313110131 is a prime.

It is a super-2 number, since 2×12123313110131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123313110097 and 12123313110106.

It is not an unprimeable number, because it can be changed into a prime (12123313110137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10102091 + ... + 11238276.

It is an arithmetic number, because the mean of its divisors is an integer number (787246175520).

Almost surely, 2^{12123313110131} is an apocalyptic number.

12123313110131 is a deficient number, since it is larger than the sum of its proper divisors (472625698189).

12123313110131 is a wasteful number, since it uses less digits than its factorization.

12123313110131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21340634.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 12123313110131 its reverse (13101131332121), we get a palindrome (25224444442252).

The spelling of 12123313110131 in words is "twelve trillion, one hundred twenty-three billion, three hundred thirteen million, one hundred ten thousand, one hundred thirty-one".